NTW RJ45 net-Lock(TM) Patch Cable key insert, Butterfly finger-release, Orange, 25pcs

These are useful for keeping Ethernet cables locked into place, ONLY if you (1) already own net-lock cables, or (2) buy the retrofit boots that convert regular cables to net-lock.

https://www.ntwgroup.net/store/c44/net-Lockā„¢_Lockable_RJ45_Cable_-_Patented.html